5093

Rating ID mismatch

ABB · ACS880

What does 5093 mean?

There is a discrepancy between the drive's physical hardware identification and the information stored in its memory unit. This often occurs after maintenance such as a firmware update or memory unit replacement, potentially preventing the drive from operating correctly or safely.

Common Causes

  • Replacement of the control unit or memory module (e.g., EEPROM) without proper initialization or matching to the power unit.
  • Firmware incompatibility between the power unit and control unit after an update or downgrade.
  • Internal hardware fault on the control board or power unit leading to incorrect ID recognition.
  • Corruption of the drive's non-volatile memory storing the rating ID.
  • Incorrect power unit selected in drive configuration after a factory reset.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Perform a factory reset of the drive (e.g., parameter P9-01 = 1), then re-enter the power unit rating manually via parameter P0-01 (Drive Rating Code).

  2. 2

    Verify the firmware versions of both the control unit and power unit are compatible (refer to drive manual).

  3. 3

    If a control unit or memory module was recently replaced, ensure it is the correct part number for the power unit.

  4. 4

    Re-upload parameters from a backup file after a factory reset.

  5. 5

    Check for any physical damage or loose connections between the control board and the power unit sections of the drive.

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Verified technical data. Last updated: March 2026

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